Itineraries flown on 20+ days in the Jun 6 – Jul 31, 2026 schedule · each leg’s record Aug 2025 – Jul 2026

Connect in the morning. The same 90-minute layover misses 3% of the time at 8 am and 1 time in 5 at 5 pm.

Nonstops


Southwest	HOU	STL	2h 00m	80%	0.4%	1,559	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach St Louis on time. Total trip = scheduled departure to arrival, layover included. Layovers up to 4 hours. Pick a connection for the details.


Southwest Details →	HOU 05:30 → DEN 06:55WN 1970	3h 10m Denver	DEN 10:05 → STL 13:20WN 1753	7h 50m	100%	96%
Southwest Details →	HOU 05:35 → MSY 06:45WN 2049	1h 00m New Orleans	MSY 07:45 → STL 09:35WN 3020	4h 00m	95%	91%
Southwest Details →	HOU 05:00 → MCO 08:25WN 4483	2h 45m Orlando	MCO 11:10 → STL 12:40WN 3316	7h 40m	100%	83%
Delta Details →	HOU 06:00 → ATL 09:05DL 2557	2h 47m Atlanta	ATL 11:52 → STL 12:34DL 566	6h 30m	99%	80%
Southwest Details →	HOU 08:15 → DEN 09:45WN 1971	3h 10m Denver	DEN 12:55 → STL 15:55WN 3152	7h 45m	100%	77%
Delta Details →	HOU 17:12 → ATL 20:28DL 2381	2h 42m Atlanta	ATL 23:10 → STL 23:53DL 1403	6h 44m	95%	76%
Southwest Details →	HOU 08:10 → MDW 10:40WN 1294	2h 20m Chicago	MDW 13:00 → STL 14:10WN 2902	6h 00m	100%	76%
Southwest Details →	HOU 07:00 → DAL 08:10WN 4	1h 30m Dallas	DAL 09:40 → STL 11:25WN 1411	4h 25m	97%	76%
Tight connection: often missed
Southwest Details →	HOU 18:05 → MCO 21:30WN 2036	1h 05m Orlando	MCO 22:35 → STL 00:10 +1WN 142	6h 00m	71%	39%
Southwest Details →	HOU 14:55 → RDU 18:35WN 4411	1h 15m Raleigh/Durham	RDU 19:50 → STL 20:55WN 3457	6h 00m	74%	25%
Southwest Details →	HOU 17:55 → DEN 19:40WN 1974	1h 05m Denver	DEN 20:45 → STL 23:55WN 3317	6h 00m	36%	15%

Same layover, different day-part

How often the first flight arrives too late to connect (45 min minimum), for one-ticket layovers of 45–80 minutes.

Morning

MSY · 1h 00m · leaves 05:35 5%

PHX · 1h 07m · leaves 06:20 6%

DEN · 1h 05m · leaves 10:20 18%

Afternoon and evening

RDU · 1h 15m · leaves 14:55 26%

MCO · 1h 05m · leaves 18:05 29%

DAL · 58m · leaves 20:30 31%

Delays build through the day, so an afternoon first leg eats the layover. A short connection is fine early in the morning and a gamble later on.

Mixing airlines

One ticketMiss it and the airline rebooks you; bags go through. 45 min is enough.

Separate ticketsMiss it and you buy a new ticket. Re-check bags, clear security again: we require 90 min.


Southwest WN 1970 HOU 05:30 → DEN United UA 652 DEN 09:35 → STL Connection details →	2h 40m	7h 12m	100%	84%
Southwest WN 2622 HOU 05:50 → ATL Delta DL 566 ATL 11:52 → STL Connection details →	3h 02m	6h 40m	100%	82%
Southwest WN 3069 HOU 12:55 → DEN United UA 1422 DEN 17:34 → STL Connection details →	3h 09m	7h 48m	96%	69%

Rank all connections, any airlines →

Regional partners count as the airline that sells them: SkyWest flying Delta Connection is one Delta ticket.

How these are worked out. Makes the connection: share of the last year’s flights where the first flight arrived with at least 45 minutes to spare (90 on separate tickets). Arrives on time: first flight not cancelled × connection made × second flight not cancelled and arriving within 15 minutes. Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.

About this data: US DOT on-time records, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. Schedules (which flights and connections exist, and their times) are as of Jun 6 – Jul 31, 2026; seasonal flights outside that window aren’t ranked. Rebuilt monthly. JSON